During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded?
Hemi-cellulose
Lignin
Lipids
Cellulose
Additional Questions
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In paddy fields biological nitrogen fixation is chiefly brought by |
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Study the followings related to uses of plants and identify the correct match for the sorghum and cotton respectively. I. Blood purification and organic fertilizer. II. Animal feed and paper industry III. B Vitamin and cosmetics. IV. Explosives and organic fertilizer. The correct pair is: |
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Agriculture by using only biofertilizers is called |
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Bacterial leaf blight of rice is caused by a species of: |
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Which of the following is a symbiotic nitrogen fixer? |
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A symbiotic relationship/interaction in which one species benefits and the other species is not affected is called: |
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Which one of the following is not used in organic farming? |
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Organism like Escherichia coli and Chlamydia trachomatis fall into which domain? |
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Organisms called Methanogens are most abundant in a |
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Secondary sewage treatment is mainly a |
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